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Tempo, a leader in thermochemical energy storage (TCES) systems for industrial electrification, today announced its new corporate headquarters in San Diego, marking a critical step in the company’s transition to commercial scale.
Located in San Diego’s Sorrento Mesa innovation corridor, the 35,000-square-foot facility is designed to support materials development, engineering, prototype assembly, and system testing. While this facility serves as the company’s central “innovation engine,” Tempo is finalizing global gigawatt-scale production capabilities with tier-1 contract manufacturing partners to be announced later this year, ensuring a seamless transition to high-volume delivery.
The new facility features significant electrical infrastructure to support full-scale product testing, dedicated machine shop facilities for rapid prototyping, and environmentally controlled R&D areas to accelerate the deployment of containerized thermal batteries.
“Our new headquarters is built with the infrastructure required for scale,” said Pasquale Romano, CEO of Tempo. “Industrial electrification is moving to broad deployments, and success depends on factory-built, repeatable products. By delivering high-grade heat at a Levelized Cost of Storage (LCOS) lower than Lithium Iron Phosphate (LFP) systems, we are making the transition from natural gas to electrified heat an economic ‘no-brainer’ for heavy industry. This facility strengthens our capabilities while positioning us within one of the country’s deepest pools of technical talent.”
Tempo develops TCES systems that enable industrial operators to electrify high-temperature processes traditionally powered by fossil fuels. By storing electricity as thermochemical energy and delivering it on demand, the platform provides a continuous stream of combustion-free, high-temperature air, enabling heavy industries such as cement, chemicals, and metals to replace combustion with electrified heat.
Tempo is backed by leading climate and energy investors, including Breakthrough Energy Ventures, Khosla Ventures, and Prelude Ventures. The company’s new headquarters reflects its continued momentum as it transitions from technical validation to commercial deployment across industrial sectors.
For more information on Tempo’s industrial heat solutions, visit the newly launched website at www.tempoenergy.com.
Based in San Diego, California, Tempo develops thermochemical energy storage (TCES) systems designed for energy-intensive industries. The platform enables industrial operators to shift energy use over time by sourcing power when it is most cost-effective and enables the electrification of high-temperature industrial heat at a cost advantage to using fossil fuels. By storing electricity thermochemically, the system delivers a continuous stream of combustion-free, high temperature air at up to 1,200°C.
Tempo is backed by leading climate and energy investors, including Breakthrough Energy Ventures, Khosla Ventures, and Prelude Ventures.
For more information, visit www.tempoenergy.com.
The thermochemical energy storage systems company was originally founded in 2020 as Redoxblox, but CEO Pasquale Romano argued the company’s shift from developmental technology to commercialization required a simpler moniker.
Read the entire story at San Diego Business Journal
Redoxblox, a leader in thermochemical energy storage (TCES) on a mission to electrify the world with technology that shifts the power dynamic, today announced its rebrand to Tempo. The new identity marks the company’s transition from technology development to the commercial scaling of its breakthrough electrified heat platform.
The rebrand, developed in partnership with renowned creative agency Red Antler, aligns Tempo’s strategic identity with its unique ability to meet the rigorous demands of heavy industry. The name Tempo is a nod to three core pillars of the company’s value proposition: Temperature leadership, the time-shifting of energy, and the pace of both continuous industrial heat delivery and rapid innovation.
“As we move from technical validation toward large-scale commercial rollout, our brand must reflect the scale of the challenge we are solving,” said Pasquale Romano, CEO of Tempo. “Tempo represents our ability to deliver the extreme temperatures industry requires while giving operators the power to time-shift electricity use, sourcing energy when it is cheapest and most available. Most importantly, it speaks to pace: the continuous, uninterrupted delivery of heat that modern manufacturing demands, and the speed at which we are innovating to meet the challenge.”
Heavy industries, including cement, metals, chemicals, and food and beverage, account for roughly 24% of global energy consumption. Most of this energy is currently produced by burning fossil fuels to generate high-temperature heat. Tempo replaces this combustion by delivering a continuous stream of superheated air meeting a wide range of industrial requirements, from 100°C to 1,200°C.
The Tempo platform is designed to optimize the economics of the modern electrical grid. By offering ultra-rapid charging that can reach full capacity in as little as four hours, Tempo allows facilities to capture low-cost, intermittent renewable energy or off-peak power. This time-shifting capability enables operators to hedge against volatile energy markets while maintaining a reliable, high-temperature heat supply.
The Tempo platform is a containerized, high-density system using safe, earth-abundant materials. Key advantages include:
The company’s momentum is supported by a premier group of climate investors, including Breakthrough Energy Ventures, Khosla Ventures, Prelude Ventures, New System Ventures, and Imperative Ventures. Tempo continues to gain international recognition for its potential to transform the industrial energy landscape.
For more information on Tempo’s industrial heat solutions, visit the newly launched website at www.tempoenergy.com.
Based in San Diego, California, Tempo develops thermochemical energy storage (TCES) systems designed for energy-intensive industries. The platform enables industrial operators to shift energy use over time by sourcing power when it is most cost-effective and enables the electrification of high-temperature industrial heat at a cost advantage to using fossil fuels. By storing electricity thermochemically, the system delivers a continuous stream of combustion-free, high temperature air at up to 1,200°C.
Tempo is backed by leading climate and energy investors, including Breakthrough Energy Ventures, Khosla Ventures, and Prelude Ventures.
For more information, visit www.tempoenergy.com.
Read the entire story at ess-news.com
Tempo, a thermochemical energy storage company, has been named on Cleantech Groups 2025 Global Cleantech 100. This annual list, now in its 16th year, showcases the most promising cleantech companies making significant contribu ons to sustainable innova on. The complimentary report introduces the innovators advancing groundbreaking technologies and business models to solve energy and environmental problems.
Tempo supports industrial decarbonization and long duration on grid-scale storage via thermochemical energy storage – a new class of energy storage. These systems have higher energy density than LithiumIon, making electricity cost-competitive with natural gas in the industrial heat space, a sector that accounts for approximately 30% of global GHG emissions.
“2025 will be remembered as a transformative year for cleantech. The bar has gone up for what kind of level of poten al novelty, uniqueness, and cost improvements might be attractive,” said Richard Youngman, CEO of Cleantech Group. “The Global Cleantech 100 highlights innovators who are building the foundation for a sustainable and economically viable future.”
“It’s an honor to receive such prestigious recognition from the Cleantech Group for our commitment to developing cost-effective energy storage solutions,” said Pasquale Romano, CEO of Tempo. “It’s not just about climate. We must bring to market solutions that are reliable, emissions-free, and affordable.”
Featured companies will be recognized at the Cleantech Forum North America, taking place January 27-29 in San Diego, CA. This event offers participants the opportunity to connect with many of the innovators on the list, along with many other rising stars. The Forum will showcase the latest trends, groundbreaking technologies, and foster collaboration within the clean tech community.
About Tempo
Located in San Diego, Tempo is pioneering a new class of low-cost thermochemical energy storage systems (TCES) designed to accelerate industrial decarboniza on and address long duration energy storage needs for the grid. The company’s TCES units store energy both chemically and as heat at very high temperatures that can be discharged continuously or as needed directly into industrial processes or as an energy source for electricity genera on. The system can be fast charged when electricity prices are low or during surplus renewables generation and discharged as needed. Tempo is backed by Prelude Ventures, Khosla Ventures, Breakthrough Energy Ventures, Imperative Ventures, and New System Ventures.
About Cleantech Group
Cleantech® Group is a research-driven company that helps corporates, public sector, investors and others, iden fy, assess, and engage with the innova ve solu ons and opportuni es that are related to the world’s massive, and growing, environmental and climate challenges. Our insights and exper se are delivered to clients all over the world through our Research, Consul ng, and Events. We have been the leading authority on global cleantech innova on since 2002.
For more information, visit www.tempoenergy.com.
Cleantech Group
Carole Jacques
Director of Marketing
carole.jacques@cleantech.com
+1 347-225-6542
A coalition of leading energy technology companies has announced the formation of the Thermal Battery Alliance, the first industry group of its kind. The member companies include Antora Energy, Electrified Thermal Solutions, RedoxBlox, and Rondo Energy, which currently focus on the industrial heat sector, and Fourth Power, which currently focuses on grid storage. This strategic collaboration is set to drive transformative change in the industrial and power sectors and establish thermal batteries at the forefront of the clean manufacturing and electrification revolutions.
Thermal batteries are a breakthrough American technology that increases the competitiveness of the U.S. industrial manufacturing base and bolsters the country’s grid reliability while lowering energy costs for companies and consumers. Thermal batteries charge with low cost, off-peak intermittent power and store that energy as heat. This heat can be delivered around-the-clock to drive industrial operations, or converted on-demand into electricity to power factories and meet grid needs.
Critically, this new battery asset class relies on abundant materials without many of the supply chain hurdles faced by other types of batteries. Thermal batteries also avoid key safety challenges associated with other battery storage technologies, such as fire risk.
The Thermal Battery Alliance will:
The new industry coalition is committed to showcasing the vital role that thermal batteries play in a thriving and secure energy and industrial manufacturing base. The Thermal Battery Alliance plans a series of reports, including an analysis of thermal batteries’ grid benefits and a study of job creation impacts. These publications will underscore the ways thermal batteries lower energy costs for U.S. manufacturers and ratepayers while enabling industrial products made-in-America to be more globally competitive.
“The formation of the Thermal Battery Alliance marks a pivotal moment in the energy sector. Thermal battery technologies unlock cost-effective industrial electrification; lower electricity prices; and economic growth. Together, our member companies are committed to ensuring that thermal batteries play a major role in rapid industrial and power sector transformation,” said Katherine Hamilton, Interim Executive Director of the Thermal Battery Alliance.
The market potential for thermal batteries in the industrial heat and grid sectors is massive. Industrial heat accounts for 20% of global energy demand and 9% of U.S. emissions. Existing thermal battery technologies store energy at temperatures high enough to address 99% of U.S. industrial heat demand using clean, low-cost, surplus power. Additionally, by 2040, experts expect up to $3 trillion will be invested in long-term grid storage systems that will be able to store and provide as much as 2.5 terawatts (TW) of power worldwide.
“Thermal batteries are uniquely positioned to help solve the two biggest challenges in the transition to clean industry: making electrified heat definitively cheaper than heat from existing energy sources and growing the supply of renewable electricity to meet demand,” said Jeffrey Rissman, Senior Director at Energy Innovation Policy & Technology and author of Zero-Carbon Industry. “It’s exciting to see innovative companies in the thermal battery industry joining forces to raise awareness of this breakthrough technology and speed its adoption. The result will be a more secure and more competitive energy system and manufacturing base.”
About Antora Energy
Antora builds and deploys thermal batteries to power always-on industrial operations with low-cost renewable energy. Factory-built in the United States, Antora’s modular thermal batteries deliver reliable heat and power, enabling industrial facilities of any size to decarbonize predictably and profitably. Antora is electrifying global industry while supporting U.S. manufacturing jobs, curbing local air pollution, and accelerating the path to a reliable zero-emission grid. To learn more, visit www.antora.com and follow the company on LinkedIn and Twitter.
About Electrified Thermal Solutions
Electrified Thermal Solutions (Electrified Thermal) is pioneering the future of zero-carbon industrial heat. Developed at MIT, the electrically and thermally conductive bricks at the heart of Electrified Thermal’s Joule Hive™ thermal battery (JHTB) represent a step change improvement in electric heating element technology in terms of high temperature performance and durability. The company’s JHTB generates, stores, and delivers unprecedented near-flame temperature heat (up to 1,800°C / 3,275°F), offering the most cost-effective, clean alternative to fossil fuels.
With industrial heat processes responsible for over 20% of global greenhouse gas emissions, Electrified Thermal is creating the commercially viable decarbonization pathway for industries such as power, cement, mining, steel and metals, chemicals, and food processing. The Boston-based company is on track to commercialize the JHTB by 2026, accelerating the transition to decarbonized industrial processes and helping industries meet their net-zero goals.For more information, please visit www.electrifiedthermalsolutions.com.
About Fourth Power
Fourth Power makes reliable, cost-effective renewable energy an available resource for utilities and power generators, 24/7. By combining thermal energy storage with thermophotovoltaic (TPV) cells, Fourth Power turns the light emitted from heated carbon blocks into electricity that is dispatchable to the grid in seconds. The company’s extremely high-temperature system (2400°C) ensures maximum efficiency with readily available materials, offering the lowest-cost option for grid decarbonization. Fourth Power has engineered a highly flexible battery that is built to customer specifications and grows with the grid as renewable energy deployment expands. For more information on how Fourth Power has put the sun in a box to make clean, reliable energy more accessible, visit gofourth.com.
About RedoxBlox
RedoxBlox has pioneered a new class of energy storage – Thermochemical energy storage (TCES). RedoxBlox TCES modules store both heat and chemical energy through a metal oxide redox reaction, enabling energy densities on par with Li-Ion, but at a fraction of the cost. RedoxBlox TCES units have undergone several years of daily cycling with no degradation, and with temperatures delivered above 1100°C and up to 1500°C for the entire discharge, making the solution perfectly suited to replace natural gas in industrial applications. Learn more at redoxblox.com
About Rondo Energy
Rondo is purpose-built for industrial facilities: Its Heat Batteries are constructed from proven, durable materials and are designed for seamless integration with existing industrial equipment and processes. Whether deployed as a drop-in replacement for retiring fossil-fueled heating equipment or as a resilient complement to existing systems, Rondo requires no disruptive changes to customers’ operations.
Rondo currently operates the world’s highest temperature, highest efficiency commercial energy storage system, at Calgren Renewable Fuels in Pixley, California. Working with its partner Siam Cement Group (SCG), Rondo is expanding the production capacity of its storage media from its current 2 GWh/yr to an industry-leading 90 GWh per year. Rondo Energy is headquartered in Alameda, California. Learn more at rondo.com.
Katherine Hamilton, Interim Executive Director
Katherine is serving as Interim Executive Director of the Thermal Battery Alliance. She has decades of experience in energy storage, including during her ten year tenure at Virginia Power (now Dominion) where she designed power grids and assisted utility customers in accessing thermal energy storage tariffs. In the intervening years, Katherine led policy for the Energy Storage Association, worked to pass Long Duration Energy Storage legislation in Congress, and served as a technology expert on the Governor of Virginia’s energy storage task force to identify ways in which the Commonwealth could meet its storage targets. As an international policy expert, Katherine was an original and longtime host of The Energy Gang podcast. Katherine has led several councils of the World Economic Forum as a global policy and technology thought leader and is currently a Senior Executive in Clean Power and Electrification. She served as Vice Chair of the board of Greentown Labs, with start-up hubs in Somerville, MA and Houston, TX and currently serves as a Non-Executive Director at Smarter Grid Solutions and an Independent Director at Peak Power. Katherine studied electrical engineering at Northern Virginia Community College and holds degrees from Cornell University and the Sorbonne. Katherine was previously profiled and listed on the #Solar100 board by kWh Analytics and received a Cleanie Award as Entrepreneur of the Year.
Email Katherine at: katherine@38northsolutions.com
Follow Katherine on Bluesky: @cleangridview.bsky.social
Connect with Katherine on LinkedIn
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